Cash register



0d.A 13, 1936.y v C, W, GREEN 2,057,519

CASH REGISTER Filed June 8, 1925 '7 Shets-Sheet 1 1 REGISTER Hwmmmf i CLusEn l =I DRAWER ff? l] wwntov Char/e5 Il). Green -Oct 132 CASH REGISTER Filed June 8. 1925 7 ShveetS-S-heet 2 attenant@ C. W. GREEN 'CASH REGISTER oct. 13, 1936.

Filed June 8, 1925 7 Sheets-Sheet 3 Char/cs LU. 'reell Roz x a 13 .V

Oct. 13, 1936.

c. w. GREEN CASH REGISTER 7 Sheets-Sheet 4 y Filed June 8, 1925.

I 3mm/nto@ Char/es ld. 'rfe/L y 2 c. w. GREEN CASH REGISTER' 7 shets-sheet 5 Filed June 8, 1925 C. W. GREEN CASH REGISTER Oct. 13, 1936.

Filed June 8, 1925 7 Sheets-Sheet 6 C. W. GREEN CASH REGISTER Oct. 13, 1936.

Filed June 8, 1925 '7 Sheets-Sheet 'T U l] D A8 4.96 TUTAL S002 cusr n50 Ns uns MAY 11 L mm Vl A A m M T U 0 W nw S 0 N D vU U o D TI U w U C E D 0 G M m m. M T 8 8. 1. m D 2 5 4. .5 0 w U C a U U au Patented oci. 13, 193s 2,057,519

UNITED STATES PATENT oFFicE CASH REGISTER Charles W. Green, Ilion, N. Y., assignor, by mesne assignments, to The National Cash- Register Company, Dayton, Ohio, va. corporation of Maryland Application June 8, 1925, Serial No. 35,600 z2 Claims. (ci. zas-2) This invention relates generally to cash regthat they may separately accumulate the items isters of the key operated type and particularly comprising a subsequent period. Without the to that class adapted to totalize a series of items employment of suitable distinguishable char-- and employing printing devices for obtaining the acters for identifying the printed totals and other printed totals and other information. Y safeguards which will be mentioned it will be 5 In cash registers of the type particularly suited obvious that a dishonest auditor might fraudufor obtaining printed totals it is desirable that lently obtain a printed record exhibiting a total some of the totals which are obtained be folof the business transacted merely up to some time lowed by a. clearing operation while other totals prior to the actual termination of the regular i obtained should be independent of a .clearing period while the resetting could then be perl0 operation. In those operations where no clearformed at the end of such regular period. Since ing is performed after the printing of totals the he ordinarily collects the cash receipts he would printed record material will show running or then be responsible to the Head Oilice for only intermediate totals and it will indicate the the amount represented by the last printed total, amount of business transacted subsequent to the which would permit him to retain the amount of l last clearing operation and up to the time that cash received during the time the total was the total is printed. At the termination of some printed and the time the accumulators were rearbitrary period a total which, in the art, is desstored to zero. ignated as a grand or final total is obtained Such fraudulent operation would, of course, be and it is followed byaclearing or resetting operaquite difficult if the managers of the various tion so that the totalizer elements may be ready stores were careful to observe and report the 20 for the accumulation of items pertainingl to a improper operations of the auditor, but as is all subsequent period of business. too frequently the case the managers and the In order that the machine should be capable auditor may be in collusion. The ability to de- :5 of properly designating the character of the fraud the company would moreover be facilitated 25 total which has been printed it is broadly an where one person alone is made responsible for object of the present invention to include means all the totals submitted to the head office since, whereby each printed total will be accompanied in such case in the absence of careful checking by a special printed character or distinguishing and inspection, he could submit such printed mark. For the purpose of providing a suitable records as he desired, and the attempt to defraud 30 check upon the resetting operations to which the could only vbe discovered by an inventory of the totalizer has been subjected the present invenstock which in itself is a laborious task. tion contemplates the inclusion of means for in- Mechanism has been provided to prevent the dicating upon the record material the number operation of the resetting means until after a of times that the totalizer and certain special manipulative control means has been operated 3f counters have been restored to zero. By properly to condition the machine for a grand total printpreserving the printed records which contain the ing operation, and to prevent the entry of further special designation indicating the taking of a items until a resetting or clearing operation has grand total and by insuring that these records been carried out.

contain consecutively the numbers indicating the The printing mechanism, in the illustrative em- 40 number of resetting operations performeda combodiment of the present invention, which is plete check is provided over the totals of amounts adapted to print the various totals and other inentered into the machine. formation upon a record strip is normally safe- Registers of the type herein disclosed which are guarded against improper and fraudulent operaadapted to print totals are especially suited to tion by unauthorized persons by a hinged cover 45 a system of chain stores in which the manager which is releasable by the operation of a lock. of each individual store daily submits to the The printing button which, when operated, serves head office a printed record of the days business to print the desired data upon the record material which may be ascertained by a comparison of the is located under this cover and is normally operrunning total for a particular day with the runable so that when the cover is raised a total may 50 ning total of the preceding day. Periodically be printed at any time. In order that the totals an auditor may visit each store and obtain a which are not followed by a subsequent clearing total of the business accumulated during the aroperation may be suitably identified, a special bitrary period and subsequently he may restore character printing element is provided so that the totalizer elements to their zero positions so when in its normal position it will indicate this Cri fact upon the record material. while if the printing operation is to be followed by a clearing operation the same printing element will be shifted to cause the printing of a different special character. In order to properly identify such a total which is to be followed by a clearing operation it is necessary to depress a special key before the printing operation is effected. Depression of this key serves to adjust the special type printing element so that when the printing button is subsequently operated the proper identifying character will be printed upon the record strip. Depression of the special key serves in addition to unlock the resetting lever which is normally locked but the operator will of course, obtain the printed total before this lever is manipulated to zerolze the totalizer elements. Besides the shifting of the special type element and the unlocking of the resetting lever by the depression of the special key a number of other functions are performed, such as, locking the keys against a subsequent operation until the resetting lever has been manipulated, and releasing the locked cash drawer so that its contents may be removed. After the final total has been printed the manipulation of the resetting lever not only zeroizes the totalizer elements, but in addition unlocks the operating keys and restores the special key to its normal position.

The special key also has suitable connections to a counter whereby the latter will count only effective resetting operations, this being assured by the fact that depression of the key will merely condition the counter for operation while it is not until a subsequent operation of the machine that a unit will be added to this counter.

Ihe 4present invention embraces a number of interlocking devices between the dinerent manipulative members 'so that mis-operations, either intentional or accidental, may be minimized or entirely eliminated. The interlocks which are provided are very simple, but eii'ective in operation thus precluding any possibility of their becoming out of order.

As previously stated manipulation of the resetting lever according to the present invention will permita subsequent operation of the operating keys which in addition to causing certain mechanism to insert a unit in a reset counter, will also restore the special printing element to its normal position so that it will thereafter continue to print the identifying character designating intermediate totals.

Many other objects and advantages of the present invention will appear from the detailed description of a preferred embodiment which will hereinafter be given and it will be noted that by the employment of devices for printing special characters an opportunity to defraud will be greatly minimized thereby enhancing the value of the registers to which the present invention is applied.

With these and incidental objects in view the invention consists of certain novel features of construction and combination of parts the essential elements of which are set forth in the ap pended claims and a preferred form or embodiment of which will now be described with reference to the drawings which accompany and form part of the specification.

Gf said drawings:

Fig. 1 is a sectional view of the machine taken substantially through its mid-portion. This view shows particularly the differential and totalizing devices and their relation to each other as well as a section through the printing mechanism provided for effecting total printing from the totalizer and other type wheels.

Fig. 2 is a top plan view of the machine, the cabinet having been removed. This view shows the arrangement of the operating keys, the totalizer, the special counters' and date setting wheels. This view also shows the lock which is provided to unlock the hinged cover to obtain access to the different manipulative devices.

Fig. 3 is a view taken in a plane which is substantially parallel to a plane passing through the shafts which support the printing type wheels and shows the totalizer. the date setting wheels, and special counters. 'I'his gure also illustrates the resetting means common to the totalizer and special counters.

Fig. 4 is a sectional view showing the totalizer engaging devices as well as a section through the reset counter illustrating the details of construction of the latter.

Fig. 5 is a sectional view of the machine showing the details of the printing mechanism, the totalizer engaging devices and the lever for 1e setting the various registering elements to their zero positions. This view shows also the means for normally locking the resetting lever against operation, as well as the devices controlled by the special key for unlocking it and accomplishing various other functions.

Fig. 6 is a view toward the left taken on a section just to the right of one of a pair of the intermediate supporting frames, showing the lid releasing devices and the interlocking devices between the printing mechanism and driving shaft.

Fig. 'I is a view similar to Fig. 5 but omitting a number of the parts and showing the special Total and Reset key in its depressed position.

Fig. '7a is a view showing the pawl and notch arrangement used in resetting the Customer" and No Sale counters.

Fig. 7b is a view of a totalizer wheel and the pawl and notch construction for resetting it.

Fig. 8 is a fragmentary sectional view showing the position that the various parts assume when the resetting lever is drawn from its normal position to its extreme rearward position.

Fig. 9 is a detail sectional view of the counter resetting shaft taken on the lines S--l of Fig. 3.

Fig. 10 is a detail of the operating devices for the Customer counter.

Fig. 11 is a top plan view of a portion of the cabinet cover showing the special "Total and Reset" key.

Fig. 12 is a fragmentary sectional view taken on line i2--I2 of Fig. 3 showing the special printing member for normally printing the letter "S and the means for adjusting it to print the letter G when it is desired to print a total preceding a clearing operation.

Figs. 13 and 14 are examples of total printing which may be produced by the illustrative machine. The manner in which the special print ing member prints the different characters is clearly shown in these figures.

Fig. l5 is an example of printing performed by the machine after the resetting operation has been performed.

For the convenience of description the principal elements of the machine will first be enumerated and their general purposes, arrangement and co-operation will be briefly explained in order to indicate the general operation of the machine as a whole after which the preferred construction of these parts will be described more in detail, together with the function, construction and operation of certain secondary or accessory mechanisms associated therewith.

Briefly stated in general terms the present machine to which the invention is shown applied, is of the key operated type of cash register having aA plurality of banks of amount keys and a special operating key designated as the No Sale" key. All of the amount keys operate a differential mechanism for the purpose of inserting the items in a. totalizer. As is usual in this class of machines when the keys are operated they drive a power shaft from which the various parts of the mechanisms are operated.

During each operation of the machine a unit is entered in a counter designated as the Customer counter and each time that the No Sale" key is operated its associated counter will also be operated.

In order to lock the various manipulative devices other than the operating keys against unauthorized operation a hinged cover is provided, which, when securely locked prevents access to said devices, but by the operation of a lock the hinged cover may be unlocked at any desired time.

In order to print the totals and other information standing upon the totalizer, the special counters and a series of date printing wheels, a suitable printing mechanism is provided which is operated by the depression of a knob extending from th'e front of the printer cabinet, the knob being normally protected against-improper manipulation by means of the hinged cover just referred to. The printing mechanism is normally operative and so long as the hinged cover is lifted it may be operated at any time and as many times as is desired by merely depressing the printer knob. Normally a special character is printed upon the record material, which, in itself has a particular signicance indicating that no clearing or resetting operation can be performed after the total printing operation. After printing, the paper is simply drawn out and detached from the rest of the roll, through the aid of a suitable tearing edge.

When it is desired to print the totals pertaining to the termination of some arbitrary period at which time the totalizer is to be cleared, the machine is so constructed that this total will be designated in some special manner upon the record material so that the various printed totals may be easily differentiated. In order to print such a total it is necessary in the illustrative machine to depress a special key designated as "Total Reset which key adjusts the special type printing member so that the letter G Will be printed when the printing mechanism is subsequently operated. Depression of this special key will also perform a plurality of other functions, such as, releasing the cash drawer and shifting the Reset counter operating means so that when an operating key is subsequently operated a unit will be added to the counter to cause it to denote a Reset number corresponding to the next series of items to be registered.

Upon completion of the printing operation which prints the information relating to the termination of a given period, the resetting lever which has been unlocked by the depression of the special key, is manipulated so that all the elements of the totalizer and counters will be restored to zero, with the exception of those belonging to the Reset counter.

In order to insure that the manipulated devices are properly operated special interlocking devices are provided so that two of them cannot be operated simultaneously. This insures the proper recording of the amounts and the proper performance of the printing and resetting operations.

The general organization and operation of the machine as a whole having been thus outlined, the preferred construction of the various parts above referred to will now be described more in detail.

Framework The various parts of the mechanism are supported by a suitable framework comprising a base 20 and parallel side frames 2| and 22 (Figs. 1 and 2). Extending between the rearward end of the frames 2| and 22.is 'a supporting frame 23 uti lized to support the indicating and other mechanisms. The side frames 2| and 22 are rigidly connected together at their forward ends by a bar 24. Extending between the supporting frame 23 and the bar 24 and parallel to the frames 2| and 22 are frames 25 and 26, the front ends of which are bifurcated at 21 (Fig. 4) to engage a shaft 28 passing through ears integral with the bar 24. The upper rear ends of the side frames 25 and 26 rest against the frame 23 while the lower rear ends of the frames4 25 and 26 are apertured to receive a shaft 29 which passes through ears integral with the framework 23. The intermediate frames 25 and 26 are furthermore suitably joined together by means of shafts and further connections which will be referred to j As best shown in Fig. l the mechahereinafter. nism is enclosed by a cabinet 30 which may be made of any desired material. The cabinet 30 is slotted at 3| to receive the forward ends of a series of key levers and is furthermore apertured at its upper end to permit the viewing of the raised indicators. The printing and other associated mechanisms are concealed by means of a cover 3 which is rigidly attached to the cabinet 30, but is apertured so as to permit the access to certain other parts. In order to completely conceal and to prevent unauthorized persons from having access to the printing devices, as well as other manipulative devices, including a Total and Reset key and a resetting lever, these are adapted to be covered by means of a cover 32 hinged to the cabinet 3U and so arranged that when the cover is securely locked access cannot be had to any of the devices just mentioned.

Keys and key coupler The illustrated machine is provided with a number of keys 34 divided into groups (Figs. 1 and 2), one group for registering amounts from 1c to 9, another group for amounts ranging from 10 to 90 and a third group for registering values of $1.00 and $2.00 amounts. If desired additional keys may, of course, be provided. A special key 33 is also provided and designated as the No Sale key, the function of which is to release the cash drawer when it is desired to make change, etc. The amount keys 34 and the No Sale key 33 are pivoted upon a shaft 35 (Figs. 1 and 5), journalled between the side frames 2| and 22, and resting upon the rear ends of the keys is a key coupler 36 provided with a nose 3'! co-operating with notches 38 formed in the rear ends of the operating keys. When the forward ends of the operating keys are depressed the key coupler is rocked clockwise and the nose 31 enters the notches 35 4of the depressed keys. The purpose of such key coupler mechanism is well known in the art and therefore need not be discussed herein in detail.

Connected to the key coupler at 39 is a vertically reciprocating rack plate 40 (Figs. 1 and 2) provided with rack teeth 4I which alternately mesh with a gear 42 (Fig. 2) fast to a shaft 43. The arrangement of this mechanism is such that a reciprocation of the key coupler 36 by the operating keys will effect a complete rotation of the gear 42 and the shaft 43. This mechanism is also well known in the art and shown in many patents, and therefore need not be described in further detail. A

After a registration has commenced it is essential that some device be provided to insure a complete performance of the started registration before a second operation can subsequently be effected. To this end any suitable mechanism may be provided, and in the present instance it comprises a spring-pressed pawl 44 bearing against a ratchet wheel 45 secured to the main operating shaft 4I.

Differential mechanism The differential mechanism or devices controlled by the various groups of keys for entering the desired amounts in the totalizer are all simliar in construction and principle and a description of one will suffice for all. Each amount key 34 associated with the dimes group of keys (Fig. l) is provided with an upwardly extending arm 45 carrying a suitable anti-friction roller 41 cooperating with a differential slot 52 formed in a cam plate 4,8. Loosely mounted upon a transvverse shaft 49 which is journalled between the machine side frames is a frame 50 provided with spaced slots in which are secured by means of pins 5I, a series of the cam plates 45. Fig. 2 of the drawings shows the relation between the operating keys associated with the pennies bank and the cam-plates 4B which are carried by the frame 50.

The cam plates 48 are provided with L shaped slots 52 and 53, the slots 55 being concentric with respect to the shaft 49. The slots 52 are, however, graduated so that when the roller 41 carried by the arm 45 of a depressed key operates in the cam slot 52` of its associated cam plate 45 it will move the frame 50 differentially and to an amount commensurate with the value of the key depressed. When, however, the frame 50 is rocked by the depression of a key 34 of a certain group, the rollers 41 related to the undepressed keys of that group will play in the arcuate slots 5I of their respective cam plates 48, thereby permitting the frame 50 to be rocked differentially without interference from the rollers 41 of the Vunoperated keys.

It is to be understood that there is a differential frame for each group of amount keys and that the differential frame associated with each of the three groups of amount keys has attached thereto a segmental rack 54 (Fig. l). From the above, it will be evident that since there may be nine keys in a particular group and a corresponding number of cam plates 4B the segmental rack 54 may be rocked to any one of nine different positions by the depression of a key 34 associated with such group of keys. Depression of keys in two or more' groups will similarly adjust their associated segmental racks differentially so that this movement can be transferred to the totalizer pinions in a manner which will now be described.

Totalizer engaging mechanism The totalizer embodied in the machine shown in the drawings comprises a frame 55 (Figs. l, 2, 3 and 5) which is journalled in the intermediate frames 25 and 26 by means of journal pins 55 passing through the intermediate frames 25 and 26 and into sockets formed in the totalizer frames. These pins are the pivotal points of the totalizer frame and the frame is adapted to be rocked about these points as a center to bring the totalizer pinions in mesh with the actuating racks 54 at the proper time. The totalizer may be made up of any desired number of numeral elements but as illustrated comprises a series of seven wheels 51 loosely mounted upon a shaft 5l journalled in the totalizer frame 55, and the peripheries of these wheels are formed with raised characters so as to effect printing upon a suitable impression material. Each printing wheel 51 has attached thereto4 a pinion 58', the three lower order ones of which are adapted to mesh with the teeth of the segmental racks 54 hereinf before referred to.

In order to mesh the pinions 58 with the segmental racks 54 the following mechanism is provided, reference being had particularly to Figs. 4

and 5. Slidably mounted on the left hand journal pin 56 is a bar 59 which is connected at its rear end to the mid-point of an arm 60 pivoted on a stud extending from the left side of the frame 25. The lower end of the arm 6D carries a stud adapted to engage a slot formed in a box cam Si fast to the rotation shaft 43 while the forward end of the bar 59 is bifurcatedto engage the shaft 5B, which it will be remembered, carries the totalizer wheels and pinions.

During the downward stroke of the keys the shaft 43 will be rotated in the direction of the arrow shown in Fig. 4 and due to the configuration of the slot in the box cam SI the bar 5! will be drawn rearwardly early in the depression of the keys so as to rock the totalizer frame 55 about its pivotal point 56 to bring the totalizer pinions in mesh with the racks 54 which are then differentially operated under control of the keys as before explained. During the return stroke of the keys the box cam will again act upon the bar 59 forcing it forward thereby withdrawing the totalizer pinions from engagement with the actuating racks 54 and leaving the pinions 58 in their differentially adjusted positions.

In machines of the class under consideration, it is also essential that transfer devices be provided for carrying a unit from lower to higher order wheels of the totalizer and any suitable means may be provided for this purpose. Inasmuch as this mechanism forms no part of the present invention it will not be described herein,

Date printing wheels and associated setting devices It is desirable that when the total amount of the sales and other information is printed upon a record bearing material that some means be provided to designate the date to which the information pertains or in some cases to show the end of some arbitrary period to which it relates.

For this reason the present register includes a series of date setting devices in the form of adjustable wheels 58 (Figs. l, 2, 3 and 6) which project through an aperture formed in the cabinet 88, but which are normally protected against improper manipulation by means of the hinged cover 82 previously referred to. The date setting wheels 88 which are adjustable to set up the days as well as the names of the months are mounted opon a shaft 88 which is fastened at its extreme ends to the intermediate frames 25 and 28. Each wheel 88 has integral therewith a pinion adapted to mesh with the teeth of a co-operating piion 18 (Fig. 1) which is loosely mounted upon a stub shaft attached to the side frame 28. The intermediate pinions 18 likewise mesh with the pinions of printing wheels 1| (Figs. 2 and 3) formed with raised characters and which are loosely mounted upon a shaft 12 passing between the intermediate frames 25 and 28. In order to hold the type wheels in their adjusted positions there is provided a series of spring-pressed aligning pawls 18 (Fig. 3) of the usual type and well known in the art. By means of the wheels 88 the date printing wheels 1| may be adjusted to any position so as to print the desired date upon the record bearing material when the printing mechanism is operated.

The special counters are of the multiple pawl, deep notch transfer type, well known in the art and described in many patents, one of which is the patent to Thomas Carney, #876,295, dated January 7, 1908. The consecutive numbering counters are all mounted in one line on the shaft 12, which, it will be recalled, supports the dating type wheels.

The Customer counter which is situated between the No Sale and Reset counter comprises four wheel 14 (Figs. 1, 2 and 3) the peripheries of which are formed with raised printing characters and these wheels have attached thereto ratchet wheels 15 co-operating with a multi-prong actuating pawl 'I6 (Fig. 1). The actuating pawl 16 is spring-pressed and pivotally mounted by means of a pin 11 in a bail 18 loosely mounted upon the shaft 12. The bail 18 has attached thereto a pin 18 (Figs. 3 and 10) cooperating with a slot formed in the bell-crank loosely mounted upon a shaft 8|. The lower end of the bell-crank 80 is connected by means of a pin and slot to a second bell-crank 82 loosely mounted upon the shaft 48 and bifurcated at its extreme rearward end to co-operate with an eccentrically mounted disk 83 fast to the shaft 83 From the above it will be evident that when the shaft 83 is rotated by means of an operation of a key, the bell-crank 82 will be rocked and through the co-operating bell-crank 80 will rock the bail 18 and through the actuating pawl 18 insert a unit in the Customer counter.

The No Sale counter which is just to the right .of the Customer counter (Fig. 3) is formed of three wheels 84, the peripheriespf which are formed with raised printing characters and these wheels have also attached thereto ratchet wheels co-operating with a multi-prong pawl (Fig. 3) similar to the pawl 18 described in connection with the Customer counter. The actuating pawl 85 is carried by the bail 88 to which is attached a pin 81 co-operating with an arm 88 (Figs. 1 and 2) rigidly secured to the shaftv 8|. As is best shown in Fig. 2 the shaft 8| passes through the frame 25 and is journalled at its left end in the side frame 2| and has attached thereto a second arm 88 (shown fragmentarily in Fig. 5) winch is connected to the No Sale key 83 by a means of a link 98. From this, it will be readily understood that when the No Sale key is operated the shaft 8| will be rocked and by means of the arm 88 and its connection to the bail 88 of the No Sale counter the actuating pawl will be operated thereby adding a unit to the special counter.

'I'he counter to the left of the Customer counter (Figs. 2 and 3) is known as the Reset" counter and is provided for the purpose of registering the number of times that the resetting operation has been performed. As is best shown in Figs. 2, 3, and 4, the bail 8| which is associated with the Reset countedV wheels 82 is provided with a laterally extending lug 88 which is in the path of the pin 18 attached to the bail 18 associated with the Customer" counter. The bail 8| has attached thereto a laterally extending pin 88 which, as best shown in Figs. 5 and 1, is in the plane of a double arm 85 loose upon the shaft 8|. The rearward portion of the arm 85 carries a pin 88 engaging a bifurcation 81 of a depressible key 88. The key 88 (as shown in Fig. 1l) is designated as the Total Reset key and it must be depressed in order to unlock a resetting lever 88 (Figs. 5and '1) before the latter can be operated to perform a resetting operation as will be subsequently explained in detail. The key 88 is shown in its normal position at Fig. 5 and depressed in Fig. 'IA and from the first mentioned figure it will be clear that when the key 88 is depressed the pin 88 will be rocked downwardly thereby raising the forward end of the arm 85.

' As will be observed from Fig. 2'the actuating pawl 8| associated with the "Reset counter is normally rearward of the bails 18 and 88 associated with the Customer and No Sale" counters, respec tively. When the forward end of the arm 85 is raised it will co-operate with the pin 8|' and by means of the upper edge of the arm 85 lt will cam the pin 84 upwardly and forwardly bringing it to the position shown in Fig. '1. During this operation the bail 8| was, of course, also forced upwardly and forwardly, but during this movement of the bail and actuating pawl, the pawl was merely slipping idly over the ratchet wheel.

However, when the machine is subsequently conditioned for an item entering operation and a key is depressed, the Customer" counter will be operated in the usual manner. Since the bail 8| associated with the Reset counter has been moved to bring it in line with the balls associated with the two remaining counters (as shown in Figs. 3 and 4) the pin 18 of the customer counter operating bail will contact with the lug 88 and force the bail 8| downwardly and rearwardly to its normal position and thereby add a unit to the Reset counter. It will be clear, therefore, that the "Total Reset" key merely cocks the operating means and that the unit is only entered whenever the machine is subsequently operated.

As will be explained hereinafter an interlocking mechanism requires alternation of the operations of the key 88 and the resetting lever` 88, but it will be obvious, of course, that the key 88 may be operated as many times as desired without disturbing the bail 8| after it has once been adjusted to the position shown in Figs. 3 and 7, in which position it is held by a detent |282 (Fig. 12) as will be more fully explained hereinafter.

Printing mechanism In cash registers of the class shown and described the total of the sales registered and other information is frequently obtainable only by reading the amount standing upon the totalizer elements and other registering devices. It is preferable, however, to have this information printed a printing frame which is pivotally mounted and adapted to be manually swung about its pivot by the use of a knob or key to carry a pair of impression elements against the two lines of printing type already described. 'Ihe frame is normally spring held in its outward position and is provided with suitable inking devices and means for carrying and guiding a record strip. As has already been explained the locked cover 22 normally conceals and prevents access to the printing mechanism. The construction of the various elements of the printer will now be described generally, but not in detail, since it forms no part of the present invention. However, for details of construction and further explanation reference may be had tc the application of Charles W. Green, Ser. No. 13,470, nled Mar. 6, i925, now Patent No. 1,873,760, issued August 23. 1932.

Referring to Figs. 1, 5 and '1, it will be noted that the printing frame comprises a plate |00 integral with which are two side plates |0| and |02, the lower ends of which are apertured to receive the shaft 20. All of the associated printing elements are carried by the frame just referred to. Journalled in the side plates I0| and |02 at their upper portions is a shaft |00 forming the pivotal point of a platen |04 provided with two parallel rubber impression blocks |05.

The ribbon supporting frame comprises two parallel plates |00 and |01 which are attached to each other by any suitable means. Attached to the plate |01 is a pair of lateral plates |00 (one of which is shown in Figs. 5 and 6) substantially at right angles to the plate |01 and formed with elongated slots |00 to receive the platen supporting shaft |00.

It will be noted from an inspection of Fig. 5 that the supporting plates |00 and |01 are suitably bent so as to form channels I|0 located just in line with the impression blocks |05 for the reception of ribbon carrying frames or plates I I| in which are held or fixed across apertures in the frames, strips of inking ribbon II2. -A ribbon frame is provided for each printing line so that each can be removed or replaced independently of the other.

Referring to Fig. 1, it will be noted that the ribbon supporting plate |01 extends downwardly and is curved. Also extending between the side plates |0| and |02 and curved similarly to the lower portion of the plate |01 to form a narrow passage therewith is a curved plate I|3 (Fig. 2) which serves as a support for the roll of paper. As best shown in Fig. 5 the paper strip is drawn from a roll Ill and one end is inserted between the plates |01 and ||3 and guided over the rear faces of the platen |04, after which it will be guided by the upper curved portion ||5 of the plate |01 so that it passes forwardly under a plate IIB, which is riveted or otherwise secured to the side plates |0I and |02 and is formed at its upper forward edge with serrations I I1 adapted to facilitate the tearing of a section of the record strip from the rest of the roll. As shown in Fig. 5, it will be noted that the plate |00 is cut away at I8 so as to permit the insertion of a finger to draw the upper portion of the record strip outwardly before detaching a section of it from the rest of the roll.

The relation of the printing devices to the cabinet is best shown in Figs. 1 and 6, and from Fig. l, it will be noted that the cover 3|' is apertured at its lower end at IIS to permit insertion of the roll of paper III and is also apertured at |20 in line with the opening I8 of the plate 00 to permit the insertion of a finger' to draw out the printed record strip. The side portions of the cover 3|' are each provided with a pair of elongated apertures I2|, such as shown in Fig. 6. These are provided for the purpose of permitting the insertion of a new ribbon frame in the printer while the printer is in its normal position. When the printin'g mechanism is so positioned and it is desired to insert a new ribbon frame the latter is merely inserted in the aperture |2I and by forcing it laterally the old frame will be ejected from the opposite end sufilciently to permit its withdrawal by the fingers so that the printer may then accommodate the new ribbon frame.

In order to retain the printer in its forward or normal position, the side plate |0| has attached thereto by means of a lug'I22 (Fig. 6) a bell-crank |23 loosely pivoted upon the pivotal shaft 20 of the printer. The tension of a spring |20 attached to the horizontal arm of the bell-crank |23 normally retains the printing devices in the position shown in the drawings.

In order to permit the printing mechanism to be forced rearwardly so as to take a printing impression from the adjusted type carriers there is rovided a button |25 (Figs. l and 5) which is slidably mounted in the cover 3 and has its rearward portion contacting with the plate |00.

The Customer and "No sale counters have adjacently mounted special printing members |20 (Fig. 3) which are loosely mounted upon the shaft 12 and carry indicia to identify these counters. It will also be noted that the totalizer 55 carries a similar special ltype block |21 bearing the word Total which is in correspondence with the printing line of the totalizer elements.

-Let it be assumed that the hinged cover 32 has been raised so as to permit access to the printing devices and that the record strip has been properly inserted.and that the ribbon frames are also in their proper places. The printing button |25, if now depressed, will force the entire printing frame rearwardly tensioning the spring |24 (Fig.

.6). As the printing frame is forced rearwardly towards the type the rear ribbon supporting plate |06 will contact with a forward projection |28 (Fig. 5) of the intermediate frames 25 and 25,

thereby holding the ribbons in their supporting plates against further movement. As the printing button is depressed still further the side plates I0| and |02, will, through the shaft |03 continue to force the platen rearwardly. At substantially this point of operation the lower impression block |05 will contact with the totalizer elements thereby holding the lower portion of the platen rigid and forcing the platen to rock slightly counterclockwise as viewed in Fig. 5 so as to permit the upper impression block to strike the special counter printing elements with the result that the elements of the two printing lines are struck with substantially equal force. that the rubber platen blocks will force the paper against the inking ribbons and adjusted type so that the impression will be made upon the strip of paper. For the best results the button |26 should be depressed sharply and quickly with the It will be understood thumb so as to insure a. clear and legible print on the record strip.

After the impression has been `made the index` `finger may be inserted in the aperture providedv for that purpose and the portion of the printed record strip may be withdrawn and detached from the rest of the roll.

Referring now particularly to Fig. 13 there will be seen an example of printing adapted to be performed by the illustrative machine. The word Total is printed adjacent the figures representing the total of cash sales for some particular period and parallel to this printing line is printed the information which is contained upon the special counter and date printing wheels. It will be noted from Fig. 3 that the abbreviation NS identifies the amount printed by the No sale counter while the abbreviation Cust identifies the amount printed by the Customer counter. Located adjacent to the three numerals printed by the Reset counter wheels 92 is the character S which is printed by a special type block |29| (Figs. 3 and 12) which comprises a portion of the present invention and as will be explained in detail hereinafter has a particular significance.

Control lock During the description which has previously been given, reference has been made to a hinged cover 32 which conceals and covers the various manipulative devices. It is, of course, desirable to have this cover locked and to this end the illustrative embodiment of the invention herein disclosed is provided with a lock which releases the cover to obtain access to the different manipulative devices. This lock is shown in Figs. 2 and 6 identified by reference character |30 and is attached to a plate |3| which, in turn, is carried by the rear frame 23. The upper portion of the lock as shown in Fig. 6 projects through the cabinet 30 so as to permit the rotation of the barrel of the lock by the insertion of a suitable key. The barrel of the lock has attached thereto a cam |32 co-operating with pins |33 and |34 carried by a shiftable shaft |35 passing through holes formed in the intermediate fram'es 25 and 26. It will be clear that when the key is inserted in the lock and the barrel is turned the cam co-operating with the pin |33 will shift the shaft |35 to the left as viewed in Fig. 2. In order to guide the shaft |35 in its reciprocating movements and prevent it from rotating in the frames 25 and 26 there is attached to the shaft an arm |36 carrying a pin |31 working in an aperture in the side frame 26.

Co-operating with a notch in the shiftable shaft |35 is a bell-crank |38 (Figs. 2 and 6) which is pivoted at |39 to a stub shaft |40 attached to the frame 25. One end of the bellcrank |38 projects through an aperture formed in the frame 26 and projects into a hole formed in the sliding plate |4| (Fig. 6) guided by studs |42 carried by the side fram'e 26. The sliding plate |4| is provided with an extension |43 which passes through a slot in the cabinet 30 and rests quite closely against the right side of the printer cover 3|'. In order to hold the cover 32 latched there is provided a spring operated catch |44 `(Fig. 6) which is pivoted at |45 to the cover 32.

To summarize the operation of the above it will be evident that when the key is inserted in the lock and the bolt is turned in a clockwise direction (as viewed in Fig. 2) the action of the cam |32 upon the pin |33 will be such as to shift the shaft |35 to the left as viewed in Fig. 2.' This will rock the bell-crank |30 clockwise so as to draw the plate |4| rearwardly from the position shown vin Fig. 6 and through the extension |43 operate the catch |44 to disengage the hooked portion from the stud |46. The cover 32 is now unlocked and may be raised to permit access to the various manipulative devices which it normally conceals.

Interlocking mechanism between printer and operating keys The mechanism as thus far described is substantially complete and practically operative, but some devices which may be called precautionary devices are desired to prevent any possible misoperations of the machine.

Owing to the prejudice on the part of persons operating cash registers they are subjected to the severest strains in an effort to make them break down or print incorrect amounts. While the present machine has locking devices, such as described in the preceding section which when released merely unlock the various manipulative devices for operation, it includes also co-ordinated interlocking devices which prevent the simultaneous operation of two or more of the manipulative devices. It is desirable while printing is being performed that the operating keys be locked as long as the printer is in the printing position,

and it is furthermore necessary in order to prevent fraudulent printing operation to prevent printing during the registering operation by the operating keys.

To this end the arm 60 which has been mentioned hereinbefore extends rearwardly and is connected by means of a pin |48 (Figs. 5 and 7) to a shiftable member |49 provided with an inclined slot |50 engaging a shaft |5| journalled in the side frames 25 and 26 (Fig. 2). The member |49 is provided with a forward projection |52 and somewhat in rear of said projection with a rounded cam edge |53 co-operating at times with a stud |54 carried by a locking member |55 rigidly attached to the shaft |5I. The locking member |55 is provided with a stud |56 and a notch |51 adapted at times to co-operate with a locking stud |58 secured to the printer side frame |0|. The shaft |5| at its other end (Fig. 6) is provided with another locking member |59 provided with a notch |60 similar to the notch |51 and adapted at times to co-operate with the locking stud |22 carried by the left printer side plate |02.

It will be evident from an inspection of Figs. 5 and '7 that when the printing mechanism is in its normal position and one of the keys is op erated the shaft 43 will be rotated clockwise as viewed in Figs. 5 and 7, thereby rocking the arm 60 to draw the totalizer into engagement with the actuating racks. At the same time the member |49 will be drawn rearwardly and due to the inclination of the slot |50 the forward end of the member |49 will be forced upwardly as well as rearwardly so that by means of the camming edge |53 co-operating with the stud |54 the shaft |5| will be rocked counter-clockwise. Rocking of the shaft |5| in this direction will move the locking elements |55 and |59 so as to bring their respective locking edges |6| and |62 into the path of the associated locking studs |66 and |22, respectively. This will lock the printer against operation substantially throughout the down stroke of any of the operating keys, and since the operation of the totalizer takes place at this time it will be clear that it is impossible to simultaneously add an amount to the totalizer and print the amount standing on it.

It will be obvious on the other hand that when the printer is moved to effect printing, the locking studs |59 and |22 will move into their associated notches |51 and |60 formed in the locking elements |55 and |59, respectively. This will hold the shaft rigidly together with the locking elements |55 and |59 so that if an at tempt is made to depress one of the operating keys it will be prevented after a slight movement by the abutment of the camming edge |53 against the stud |54 carried by the rigidly held member |55. This is due to the fact that depression of a key will serve to lift the coupler and turn the shaft 43 which through the cam 6| would attempt to draw the link |49 rearwardly.

The means just referred to will, therefore, serve to prevent the operation of the operating keys while the printing mechanism is partially `or fully operated. It will be noted, however, from Figs. 5 and 7 that if the printer is moved from normal position so that the locking studs engage their associated notches one of the operating keys may be slightly depressed, its extent of depression being controlled by the separation existing between the stud |54 and the locking edge |53. Due to the separation of the last mentioned elements it is possible that a key might be depressed sufficiently to insert a unit in the totalizer and then if the printer were operated a false record might be produced. Thus a dishonest employee might be given an opportunity to mis-operate the machine with resultant damage to the parts and an incorrect printing operation. In order to prevent such an occurrence a second interlock has been added as a precautionary measure.

For this purpose the bell-crank |23 (Fig. 6) previously mentioned, extends rearwardly and is connected by means of a pin |63 to a member |64 which is bifurcated at its rearward end to engage the shaft 43. The member |64 is equipped with a lug |65 adapted at times to be received in a square notch |66 formed in a disk |61 attached to the shaft 43. It will be clearly seen from Figure 6 that when the printer is rocked rearwardly, the member |64 will be forced in the same direction and through the co-operation of the lug |65 with the notch |66, the shaft 43 will be locked thus preventing any depression of the operating keys. Likewise when the shaft 43 has been displaced from its normal position by the depression of one of the operating keys the periphery of the disk |61 co-operating with the lug |65 will hold the member |64 rigid and will prevent any displacement of the printing mechanism from its normal position.

Resetting devices At the termination of a days business or any arbitrary period it is usually desirable that the various registering elements be returned to zero to prepare for the separate registration of the sales to be accumulated during a subsequent period. To this end the illustrative machine is provided with a single lever 99 which, when gilven a. complete reciprocation, will reset the various elements to their zero positions.

As best shown in Fig. 11 the resetting lever projects through and works in a slot |66 formed in a portion of the cabinet 30 which is under the cover 32. Thel resetting segment 93, as shown in Figs. '1 and 8, is loosely mounted upon the shaft 49 and is provided with a forward extension |69 formed with rack teeth meshing with the teeth of a gear (Fig. 3) loose upon a stub shaft |1| rigidly secured to the side frame 25. The pinion |10 has attached thereto at one side a mutilated pinion |12 meshing with a pinion |13 loosely mounted upon the shaft 12 which, it will be recalled, supports the consecutive numbering counter wheels. Also connected to the pinion |10 at its other side is a bent disk |14 which co-operates with a spool |15 pinned to the shaft 58, which it will be remembered, supports the totalizer elements. Attached to the spool |15 is a gear |16 which is normally out of the plane of the pinion |12 with which it is adapted to mesh at certain times. From the above, it will be evident that when the resetting segment rotates the gear |10, the pinion |12 and bent disk |14 will rotate as a unit. It will, furthermore, be noted from an inspection of Figs. 3 and-9 that the pinion |13 has integral therewith a semi-annular ring |11 which co-operates with a lateral projection |16 integral with a collar |19 pinned to the shaft 12. Due to the normal relationship between the semi-annular ring |11 and the lug |19 the pinion |13 can be given an idle movement before the semi-annular ring 11 contacts with the lug |18 to rotate the collar |19 and the shaft 12.

In order to reset the totalizer elements to zero each is provided with a pivoted pawl 51a which is spring-pressed against the shaft 56 which is provided with a series of notches 58a, one for each wheel of the totalizer. 'I'he resetting pawls are normally out of the path of the associated notches, but when the shaft 58 is shifted, as will be explained, the notches and pawls are brought into co-operative relationship and when the shaft 58 is turned the notches will contact with the ends of the pawls and pick up the to talizer elements in whatever position they may be standing at the beginning of the movement of the shaft and carry them around with it so that a complete rotation of the shaft in such direction will serve to reset the totalizer elements to zero or initial position. This method of resetting is well known in the art and is described in detail in the British Patent #135,465 of July 11, 1921 while the same principle of operation is disclosed in a patent to Thomas Carney #876,295, dated January 7, 1908.

The shaft 12 which carries the special counters is provided with a series of notches as 12a, slmilar to those in the totalizer shaft. These notches, however, are normally in the plane of the resetting pawls, as 14a, carried by the registering elements associated with the Customer and "No sale counters so that this shaft need not be shifted laterally to reset these counters. The Reset counter wheels 92 (Fig. 3) are not provided with any resetting pawls or associated notches in the supporting shaft 12 so that when the shaft 12 is rotated, as will hereinafter be described in detail, the Reset counter elements will not be restored to their zero position but will continue to accumulate units Whenever the resetting lever and the operating keys are operated alternately.

Assuming that the resetting lever 99 is unlocked for operation, it will be obvious that when it is moved from the position shown in Fig. 7 to the position shown in Fig. 8 the teeth of -the segmental rack |69 carried bythe lever will rotate the pinion |10 and the bent disk |14 and due to the co-operation of the said disk and the collar the shaft 58 will be shifted to bring the 'pinion |16 into mesh with the teeth of the mutilated pinion |12 and furthermore to bring the resetting pawls and notches into co-acting relationship.

During this time the gear |13 will have been moved counter-clockwise as viewed in Fig. 9 until one end of the semi-annular ring |11 contacts with the lug |18 carried by the collar |19 (Fig. 3). At substantially the time that the pinions |16 and |12 are in engagement the annular ring |11 has been rocked sufficiently to contact with the lug |18 so that a further rearward movement of the resetting lever will, through the train of mechanism rotate the shafts 58 and 12, so that the notches in these shafts will co-operate with the pick-up pawls carried by the totalizer and the elements of the two special counters\to restore them to their zero positions.

After the resetting lever has been forced rearward fully it is again returned to its normal position which will return the resetting shafts 58 and 12 backwardly without affecting the position of the registering elements. It will be understood that at the beginning of the return movement of the resetting lever there will be a lost motion between pinion |13 and the shaft 12 until the semi-annular ring |11 engages the opposite face of the lug |18, and that towards the end of the return stroke of the lever 99 the shaft 58 will be laterally restored to normal. When the resetting lever is at itshome position the parts will again stand in the positions shown in Fig. 7.

It is essential that once the resetting operation has been started some means be provided to insure that a complete resetting operation will be effected. To this end there is attached to the mutilated pinion |12 a segment |80 (Fig. 4) provided with ratchet teeth meshing with a springurged pawl |8|. From the above it will be obvious that once the resetting lever has been forced even partially rearwardly to reset the various elements, it will be necessary to give the lever a full stroke rearwardly and forwardly in order to bring the parts to normal position.

Drawer release by`an operation of the machine In a machine of the type herein disclosed it is customary to provide a cash drawer which is released upon each operation of the machine and ejected outwardly under the action of a spring to open the drawer for the purpose of permitting the making of change or depositing the money tendered. To this end the machine is provided with a cash drawer |82 (Fig. 1) suitably guided in a drawer base and normally urged outwardly by the usual drawer spring |83. The drawer, however, is retained in its innermost position by a drawer catch |84 which engages a portion of the cash drawer and which is pivoted to a short shaft |85 journalled in a yoke-shaped frame |88 attached to the drawer base. At the other end of the shaft there is attached an arm |81 (Fig. 7) connected to a link |88 which carries a roller |89 co-operating with a cam |90 fast to the rotation shaft. The roller |89 is urged against the cam |90 by means of a spring |9|.

When the shaft 43 is rotated by an operation of the keys, the cam |90 will elevate the link |88 and through the train of mechanism just described will disengage the drawer catch from the cash drawer thus permitting the drawer spring to eject the cash drawer. The form of the cam |90 is such that the cash drawer will be ejected during the return stroke of the keys whichis after the completion of the registering operation.

Special character printing As has been stated hereinbefore the printing mechanism is normally operative and when the hinged cover is raised may be operated at any time to take an-imprint from the characters p resented at the printing lines by the various printing elements. This permits the operator of the machine to obtain the information regarding the amount of the sales for a certain period as well as the other data of which a record is made. The totals which are obtained without a subsequent clearing operation are designated as subtotals differentiating them from the total which is obtained prior to a clearing operation, which is usually designated a 'grand total. In order to indicate the different kinds of totals upon the record material the special character printing element |29| previously referred to is provided. In its normal position (Fig. 12) it is adapted to print a character S (Fig. 13) thereby indicating that the printed total is merely a running or subtotal.

Referring to Fig. 13 there will be seen a sample of an imprint made by the illustrative machine. The printed amount followed by Total" in this figure represents the amount of the sales transacted since the last resetting operation and up to the time the impression was taken. Adjacent to the Reset number 002 is the letter S indicating that the total is merely a subtotal. clearing operations were previously performed. The numerals 050, adjacent the abbrevation "Cust indicates the number/ of times the machine has been operated since the last resetting operation, three of the fifty operations of the machine having been No sale operations as shown by the printed numbers 003 to the right of the abbreviation NS, The date appears to the extreme right of the lower printing line.

Of course if the person in possession of the key of the lock |30 desir/es to obtain the printed information later he/is free to do so, but each printed record will continue to bear the character S as well as the same Reset number indicating that a clearing operation has not been performed.

When a grand total is wanted it is desirable to indicate the fact that one is to be taken upon the record material so that the printed amounts will represent those which were taken just prior to a resetting operation. The resetting lever in the present instance is normally locked, but it is unlocked for operation whenever the Total reset key 98 is operated. Operation of the key 98 will bring into the range of the upper platen |05 the special character G carried by the member |29| (shown in Fig. 12) so that when the printing mechanism is operated the character G will be printed upon the record strip in juxtaposition to the Reset number. Operation of the key 98 not only unlocks the resetting lever for operation, but performs a number of other functions which will be described as the specification progresses.

While depression of the special key unlocks the resetting lever, the resetting operation should not be performed until the printed information The Reset number designates that two is tlrst obtained. In practical operation the operator will rock the printing mechanism to print upon the record material the data shown in Fig. 14. Total in this case represents the sales for a period longer than that represented by the record in Fig. 13 and for this reason the printed record shown ln Fig. 14 shows a greater number of operations of the machine and No sale operatlons. The reset number 002 has not been changed since no clearing operations were performed in the meantime, but'adjacent this number is the letter GL-indicating that the Total reset" key has been depressed so as to prepare the mechanism for a resetting operation. The manner in which the key 98 sets the special character printing element will now be explained in detail.

The key 98 (Figs. 2, 5 and '7) is provided with a slot |92 engaging the shaft 8| and is connected to a lever |98 by a pin |94. Connected to the lever |99 by means of a pin and slot connection |95 is a rearwardly extending plate |98 loosely mounted upon the shaft 8| and situated between the lever |93 and the stem of the key 98.v In order to hold the key in its depressed position there is provided a latching member |91 loosely mounted upon the shaft 8l and provided with a shoulder |98 adapted to co-operate with a lug |99 carried by the stern of the key 98. The latching member |91 ls normally urged forward by means of a spring |91' (see Fig. 8).

The resetting lever 99 as previously explained, performs a resetting operation by movement rearwardly, but it is normally (Fig. 5) locked by means of a stud 200 contacting with the extreme forward edge of a gravity operated pawl 20| pivoted at 202 to the plate |98. The weight of the pawl 20| urges it to rock clockwise as shown in Figs. 5, 7, and 8, but it is limited in this movement by the co-operation of a stud 203 carried by the pawl co-operating with the upper edge of the plate |99.

When the operator desires toy print a grand total, the key 98 is depressed and as stated hereinbefore this serves to operate arm to elevate the pin 94 to cock the operating means associated with the Reset" counter so that when the maf chine is subsequently operated it will add a unit to the counter indicating the Reset number pertaining to the next series of sales to be registered. This operation of arm 95 by the key 98 will, by means of a reduced portion of the pin 98. engaging a slot in the pivoted member |29| rock the latter clockwise (as viewed in Fig. 12) thereby bringing the lower character 5" carried by the plate out of the range of the printing platen |05 and bringing the upper character G to such a position so that when the printing mechanism is subsequently operated the character G" will be printed adjacent the reset number (see Fig. 14). 'I'he special type carrier is aligned in either position by means of the spring pressed aligning pawl |292 (see Fig. l2).

When the key 98 was depressed the lug |99 carried thereby rocked the latching member |91 rearwardly until the shoulder |98 of the latter could snap over the lug |99 under the action of spring |91' the latching member |91 thereby retaining the key in its depressed position. Furthermore, as the key 98 Was'depressed the lever |93 was rocked downwardly and through the pin and slot connection |95 to the plate |96 the latter was also rocked downwardly about its pivotal point 8| carrying the pawl 20| downwardly and The printed amount followed by the word bringing its forward end out of co-operation with the stud 200 carried by the resetting lever 99. Since the resetting lever is now unlocked for operation it may be forced rearwardly to perform a resetting operation as has been explained in detail hereinbefore.

As the resetting lever is forced rearwardly from the position shown in Fig. 7 to the position shown in Fig. 8, the stud 200 carried by the resetting lever will pass over the upper edge of the pawl 20| and as the lever approaches the end of its rearward movement the stud will co-operate with the rearward extension of the pawl 20| rocking it counter-clockwise (as viewed in Fig. 7) until the stud 200 clears the end of the pawl 20|. This will permit the pawl to occupy the position shown in Fig. 8 from which it will be clear that as the resetting lever 99 is drawn forwardly to its initial position the stud will oo-operate with the underside of the pawl 20| and raise the plate |98 as well as lever |93 and through the latter will positively force the key 98 to its upper or normal position. As is best shown in Fig. 8, the latching member |91 is provided with a downward extension 204 adapted to co-operate with a stud 205 carried by the resetting lever 99. The stud 205 co-operating with the extension 204 will dlsengage the shoulder |98'from the lug |99 carried by the stem of the key and will hold them disengaged during the time that the pin 200 is raising the plate |96 to return the key to its normal position. When the key 98 is brought to its normal position the stud 20D will again occupy a position in front of the pawl 20| to prevent a second stroke of the lever 99 until the key 98 is again depressed.

Since it is usually desirable when resetting the various totalizer elements to zero to balance the cash register and remove the money from the cash drawer suitable means have been provided to release the cash drawer by the depression oi the key 99. To this end the pin |94 cci-operates with a slot 206 formed in a bell-crank 201 loosely pivoted upon the shaft 49, the rearward arm of the bell-crank co-operating with the stud 208 carried by the drawer release link |88. It will be obvious that when the key 98 is depressed, it will rock the bell-crank 201 clockwise (as viewed in Fig. 5) and by means oi. the stud 208 it will elevate the drawer release link |88 and through the connections previously described release the cash drawer.

In order to prevent a number of mis-operations which might be possible, certain additional precautionary devices are included so as to insure as nearly as possible the correct operation of the machine.

To this end the present invention includes means whereby, when the key 98 ls depressed to unlock the resetting lever for operation, the operating keys will be locked until the lever 99 has been operated. For this purpose the plate |96 is provided with a downwardly extending curved portion 209 which normally (Fig. 5) is out of the path of a stud 2|0 carried by the box cam 6|. However, when the key 98 is depressed (as shown in Fig. 7) the rearward edge of the curved portion 209 of the plate |98 will pass in front of the stud 2|0 thereby locking the rotation shaft and the keys against operation as long as the Total reset key is in its depressed position.

It will be noted from Fig. 5 that so far as this interlock is concerned it is possible to operate the keys a partial amount, before the Total reset key 98 is depressed thereby rocking the shaft I8 to bring the stud 2|0 away from the curved extension 209 and then to depress the said Total reset key 98 to unlock the resetting lever. This, 'of course, would permitan operation of the resetting lever after a key has been partially depressed with possibly a resulting interference between diierent parts of the mechanism. To preclude such a possibility the resetting lever 99 is provided with a rearward projection 2|| which has an edge 2|2 concentric with respect to the shaft 49 and another edge 2 I3 which is concentric with respect to the rotation shaft 43 Whenever the lever is in normal position. The projection 2|| is in the plane of the box cam 6 previously referred to, the box cam being provided with a milled slot 2|4 normally concentric with shaft 49 and adapted to receive the projection 2|| at certain times. If the keys are partially operated so as to bring the stud 2|0 away from the curved extension 209 to permit the depression of the Total reset" key, it will be clear that movement of the unlocked resetting lever 99 will be prevented by projection 2| contacting with the periphery of the partially rotated cam 6|.

As will be clear from Fig. 8 the co-operation of the stud 200 with the underside of the pawl 20| will raise the plate |96 to return the key 90 to its normal position before the lever 99 is fully returned to its normal position. Since this permits the curved extension 209 to be brought out of co-operation with the stud 2 0 carried by the disk 6| it would normally unlock the shaft 43 and permit the operation of one of the keys before the resetting lever has been restored to its normal position. However in view of the second interlock just described, it will be noted that whenever the resetting lever is shifted out of its normal position the projection 2|| will pass into the milled slot 2|4 thus positively locking the keys against operation until the resetting lever is brought back fully to its normal position. While this mechanism is very simple it provides an adequate preventive for any attempted mis-operations of this nature. av

While the resetting operation is being peerformed it is desirable to lock the printing mechanism against movement. For this purpose as the resetting lever is moved from the position shown in Figs. 5 and '7 to the position shown in Fig. 8 a bevelled edge 2|5 formed on a member 2|6, which is connected to the resetting lever 99 by the pin 205 previously referred to, and which is bifurcated at 2|1 to engage the transverse shaft |5|, co-operates with the pin |54 of the locking element |55. As the resetting lever 99 and link 2|6 are drawn rearwardly the edge 2|5 will cam the pin |54 upwardly rocking the locking member |55 clockwise to bring a locking edge |6| I formed just above the slot |51 in the member in front of the locking stud |58. In a similar manner (referring to Fig. 6) the locking arm |59 will be rocked counter-clockwise to bring a locking edge |62| in front of the locking stud |22. This will positively lock the printer against operation as long as the resetting lever is displaced from its normal position.

When the resetting lever is returned to its normal position from the position shown in Fig. 8 a bevelle-d edge 2|8 will contact with the stud |55 and rock the shaft |5| counter-clockwise bringing the parts to the position shown in Fig. 7 wherein the printing mechanism is again unlocked for operation.

The illustrative machine is also provided with means under the control of the single lock whereby the special key 99 and resetting lever 99 will be locked against operation until a detachable key has been inserted in the lock and the barrel of the latter has been rotated to its unlocking position. This effectively prevents any operation of the special key or resetting lever in the event that the cover 32 was not securely latched, or if by a fraudulent operation, the cover had been released to obtain access to these manipulative devices. As is best shown in Fig. '7 the plate |96 is provided with a semi-circular notch 2|9 which normally (Fig. 5) engages the periphery of the shaft |35. It will be clear from Fig. 2 that when the shaft |35 is shifted to the left, by the rotation of the barrel of the lock |30 it will bring a milled slot 220 into the plane of the plate |96 allowing the special key to be depressed. In a similar manner the resetting lever is provided with a semi-circular notch 22| (Fig. 5) which normally co-operates with the periphery of the shaft |35, but when the shaft |35 is shifted it will bring another slot 222 (Fig. 8) into the plane of the rearward extension of the resetting lever 99. The means just described also operates in a converse manner, that is, it prevents the reverse shifting of the shaft |35 by the rotation of thebarrel of the lock when either the special key or resetting lever is displaced from its normal position. It will be obvious from Fig. '1, that when the special key 99 is depressed the extreme rearward portion 223 of the plate |99 will co-operate with the milled slot 220 to hold the shaft |35 rigid and prevent its reverse movement. In a similar manner when the resetting lever is displaced from its normal position the upper edge of its rearward extension co-operating with the notch 222 (Fig. 8) will hold the shaft |35 rigid and therefore, the lock cannot be turned back to normal so long as the resetting lever is moved from its normal position. This effectively prevents the latching of the cover 32 if either of the manipulative devices should be partially operated.

General summary 0f Operation The nature of the improved mechanism is such that in order to make the foregoing description as clear as possible it has been necessary to state the operation considerably in detail as an incident to explaining the various features of construction. A complete re-statement here of the operation is therefore believed to be unnecessary. However, a rsum of the general operation of the machine will now be given to co-ordinate the operation and functions of the various parts which have been described in detail.

To enter the first cash trans-action which it will be assumed amounts to $1.65 the appropriate keys in the dollars, dimes and pennies banks are depressed so that the notches 38 (Fig. 1) in the rear ends of these keys engage the ange 31 of the key coupler 36 and through the rotation shaft 43 and the link 59 (Fig. 4) the totalizer elements 51 (Fig. 1) are drawn into engagement with the differentially operated racks 54. As the proper keys are depressed the associated rollers 41 will Work in the associated cam slots 52 formed in the plates 48 of the differential frames related to the three banks. The frames 50 will each be diil'erentia-lly operated so as to move the racks 54 an amount commensurate with the depressed keys. Since the totalizer pinions 50' are drawn into mesh with the actuating racks 54 before the racks have moved, the operated racks will move the pinions 58 differentially so that the amount $1.65 will bevadded on the totalizer elements 31. On the return of the keys to normal position the totalizer pinions will be disengaged from the racks so that the return movement of the latter will not affect the amount registered.

During the rotation of the shaft 88 the eccentrically mounted disk 88 (Fig. l0) will operate the bell-cranks 82 and 88 so as to rock thebail 18 to add a unitin the units wheel 1l (Fig. 3) of the "Customer" counter. During the first transaction following a resetting operation the pin 18 associated with the Customer counter will cooperate with the extension 88 of the bail 8| associated with the Reset counter, which was cocked forward on the previous resetting operation, and will thus force the bail 8| rearwardly so as to add a unit in the Reset counter. The number now standing on the Reset counter is the special reset number for the sales to be accumulated during the period just begun.

As the shaft 48 rotates the cam |88 (Fig. 7) co-operating with the stud |88 raises the drawer release member |88, and through the arm |81 and the shaft |85 raises the drawer catch |88 upwardly disengaging it from the cash drawer and permitting the spring |88 to eject the latter outwardly.

Whenever it is necessary to release the cash drawer for the purpose of making change, etc. the "No sale key 88 may be operated and during its depression the link 88 (Fig. 5) will be drawn downwardly and by means of the arm 88 attached to the shaft 8| will rock said shaft as well as the arm 88 (Fig. 2) and by means of the co-operation of the latter with the bail 88 will add a unit in the No sale" counter wheels 88.

At the termination of a days business it is desirable to obtain the available information in printed form and to this end the proprietor insorts his key in the lock |88 (Fig. 2) and rotates the cam |82 clockwise (Fig. 2) unlatching the cover 82 so that it may be elevated to render access to the printing button |25 (Fig. 5). If the printing impression which is to be obtained is not to be followed by a clearing operation the special key 88 will not be depressed, but the printer button |25 will be sharply depressed so as to force the rubber impression blocks |85 rearwardly thereby forcing the paper against the inking ribbon and adjusted type members. After the printing operation has been performed the printed portion of the strip (an example of which is shown in Fig. 13) is withdrawn and detached from the rest of the roll.

If a key should have been accidentally partly depressed prior to theoperation of the printing mechanism the member |48 (Fig. 5) will have been shifted rearwardly and through the co-operation of the cam edge |58 with the pin |54 the shaft |5| will have been rocked counter-clockwise- This will have resulted in bringing the locking edge |8| (below the notch |51) into co-operation with the stud |58 carried by the printer frame. In a similar manner (referring to Fig. 6) the locking edge |82 (below the notch |88 of the member |58) wlll have been brought into locking cooperation with the stud |22 carried by the opposite side of the printer frame. It will be obvious, therefore, that it will be impossible to operate the printing mechanism whenever one of the keys is away from its normal position. It may be noted incidentally that this rocking of the pin |88 downwardly also serves to prevent the operation of the resetting lever by co-operation with the notch below the cam surface 2I5 of link 2|8.

The locking devices shown in Fig. 6 comprising the member |88 connected to the printer by the arm |88 and carrying the lug |88 co-operating with the periphery of the disk |81 will also prevent rearward movement of the printing frame to obtain an imprint, whenever the shaft 88 has been turned by the partial depression of an operating key.

Conversely when the printing mechanism is displaced, the locking studs |58 and |22 will cooperate with their respective notches |81 and |88, to hold the shaft |8| rigid and through the pin |88 to prevent the rearward shifting of the member |88 by the depression of one of the keys. Dur ing the rearward movement of the printing mechanism (referring to Fig. 6) the lug |85 entering the square notch |88 of the disc |81 will also prevent rotation of the shaft 43 by the depression of one of the operating keys.

Since the special type carrying member |28| (shown in Fig. 12) has not been moved from its normal position, it'will print the latter S adjacent the reset number thus indicating that the printing of the total has not been followed by a clearing operation.

When it is desired to print a total which is to indicate the grand total of all the items entered in the machine during a particular period after which the totalizer elements are to be brought to their normal positions in preparation for 'the accumulation of a series of items comprising a subsequent period of business, the special key 88 designated as Total reset is depressed and through the pin and slot connection 88 and 91 (Fig. 5) to the double arm 85 it will rock the pin 88 upwardly and forwardly so that the operating pawl associated with the Reset counter will slip over the ratchet wheels into its forward cocked position. This will have brought the lug 83 (Fig. 3) into contact with the pin 18 carried by the Customer" counter operating bail 18 so that this bail, when subsequently operated, will operate the Reset operating bail 88 and accumulate a unit in the Reset counter during a subsequent operation of the machine.

While the pin 88 was forced upwardly and forwardly it also rotated the type carrying member |28| (Fig. 12) thus bringing the character G into the range of the upper printing platen |85. Therefore, when the printing mechanism is subsequently operated the character G (as shown in Fig. 14) will be printed in juxtaposition to the Reset number in place of the letter S.

It should be stated that when the shaft |35 was shifted to the left (as viewed in Fig. 2) to release the cover 32 it brought a notch 228 (Fig. 2) into the plane of the plate |88 thereby unlocking the key 88. At the same time the second notch 222 (Fig. 8) formed in the shaft |85 was brought into the plane of the resetting lever 99 thereby partially unlocking it for operation, but since the lever 98 is normally locked against movement by the pin 288 engaging the rearward end of the pawl 28| (Fig. 5) it required the depression of the key 88 to effect such disengagement and to fully unlock the lever.

Depression of the key 88, as mentioned caused the lug |88 carried thereby to engage the shoulder |88 formed on the latching lever |81 thereby locking the key in its depressed position,

When the key 88 was depressed, the pin |94 (Figs. 5 and '1) co-operating with a slot 288 formed in a bell-crank 281 and through the cooperation of the latter with the pin 288 elevated the link |88 which by means of the arm |81 and shaft .disengaged the catch |88 from the 75 drawer |83 thus permitting the drawer spring to eject the cash drawer in the usual manner.

As a further result of the depression of the key 98 the lever |93 lwas rocked clockwise (as viewed in Fig. 5) so as to effect the unlocking of the resetting lever as before explained, by means of the pin and slot connection rocking the plate |98 downwardly about its pivotal point 8| and carrying the pawl 20| downwardly to bring its rearward end out of co-operation with the stud 280 carried by the resetting lever 99. At the same time the extension 289 of the plate is brought in front of the stud 2 |0 carried by the disc 8| whereby operation of the operating keys is prevented.

Since the resetting lever is now fully unlocked for operation it may be forced rearwardly to perform a resetting operation and as it is so moved the segment |69 (Fig. '1) carried by the lever will rotate the gear |10 (see Fig. 3 also) and the bent disk |14 to shift the shaft 58 laterally until the notches in the shaft co-operate with the resetting pawls carried by the totalizer elements 51. At the same time the gear |16 carried by the resetting shaft 58 will be meshed with the gear |12 which is rotated with the gear |18 and in turn is also rotating the gear |13 to take up the play normally existing between one end of the annular ring |11, carried by the gear |13, and the lug |18, integral with the collar |19 fast to the special counter resetting shaft 12. Further rearward movement of the resetting lever 99 will rotate both of the resetting shafts 58 and 12 so as to reset all the totalizer elements and all the special counter accumulating elements, with, of course, the exception of the reset counter Wheels.

During the movement of the resetting lever from the position shown in Fig. '1 to the position shown in Fig. 8 to reset the totalizer elements to zero, the stud 280 carried by the resetting lever passed over the upper edge of the pawl 20| and as the lever approached the end of its rearward movement the pin 288 rocked the pawl 28| counter-clockwise (as viewed in Fig. 7) until the stud 280 cleared the end of the pawl. The relation between the pawl 20| and the. pin 288 when the lever has reached its extreme rearward limit is best shown in Fig. 8 and it will be obvious from this figure that when the pin 288 is moved forwardly again it will co-operate with the underside of the pawl 28| and raise the plate |96 so that through the lever |93 it will positively force the key 98 to its normal position. In order to permit this return operation it is necessary that the lug |99 and shoulder |98 be disengaged and this disengagement is performed at the end of the rearward movement of the lever by the pin 285 co-operating with the downward projection 284 of the latching member |91.

Simultaneous operation of the keys and resetting lever is prevented by the engagement of the projection 2|| (Fig. 8) of the resetting lever 99 with either the milled slot 2 |4 formed in the disk 6| or the periphery of the same. As the resettingr lever was moved from its normal position as before explained, the member 2|6 was drawn rearwardly and by means of the cam edge 2|5 it rocked the shaft |5| clockwise thereby bringing the locking edge |6|| (located above the notch |51 formed in the member |55) into locking relationship with the stud |58 'carried by the printer frame. In a similar manner (referring to Fig. 6) the locking edge |62| of the member |59- was brought into co-operation with the locking stud |22 thus positively locking the printer against operation as long as the resetting lever is displaced from its normal position.

While the reset lever is unlocked immediately upon the depression of the Total reset key 98, the proper operation of the machine requires a printing operation' to be performed after the key, 98 has been depressed and before the resetting operation takes place.

After the resetting operation has been performed, the printer button is usually again depressed in order to indicate on the record strip whether the resetting operation has been correctly performed. If this is the case the record strip will bear an imprint similar to that shown in Fig. 15.

While the form of embodiment of the invention herein shown and described is admirably adapted to fulll theobjects primarily stated it is to be understood that it is not intended to confine the invention to the one form herein shown,

since it may be embodied in various forms all I coming within the scope of the claims which follow:

What is claimed is: l

1. In a cash register having an operating mechanism, a totalizer operated thereby, and a clearing device therefor, the combination of a manipulative device, means restricting operation of these two devices to alternate operations thereof ,a special type carrier adjusted by said manipulative device, and means controlled by the operating mechanism for restoring the type carrier to its normal position.

2. In a cash register having a totalizer, an operating mechanism therefor, and a normally locked lever for resetting the same, the combination of a depressible key, means controlled by the key for unlocking-the lever, means controlled by the key for locking the operating mechanism, a special type carrier adjusted by the depression of said key, means controlled by the lever for restoring the depressed key, thereby unlocking the operating mechanism, and means operated by the operating mechanism to restore the special type carrier.

3. In a cash register, the combination of a to,- talizer, registering keys therefor, resetting mechanism for said totalizer, adjustable means which when adjusted from a normal position compels an operation of the resetting mechanism before the registering keys can be operated, and connections for automatically restoring said adjustable means to normal upon operation of the resetting mechanism.

4. In a cash register, the combination of a key, a special counter, operating means therefor, means controlled by the key for adjusting said operating means, a main operating mechanism, means under control of the operating mechanism for operating the special counter operating means, after it has been adjusted by the key, and a special type carrier movable with said counter operating means.

5. In a cash register, the combination of a key, a lever normally locked, a special counter, operating means therefor, means controlled by the key for adjusting said operating means, a main operating mechanism having connections to operate the special counter operating means after it has been adjusted by the key, means controlled by the key for simultaneously unlocking the lever and locking said operating mechanism, and means under control of the lever for unlocking the operating mechanism, after it has been locked 

